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Syndication

Sun, 18 September 2016
Norteko Ferrokarrilla/2016-09-16/Zenbat kilometroz marrazten du arkatz batek?

Zenbat distantziako arrastoa egin dezake arkatz batek? Arkatza paper luze baten gainean jarri, esate baterako, eta egin arrasto bat. Marra bat. Noraino joan zara?

Direct download: NFXXI-02d.mp3
Category:science -- posted at: 3:52pm EDT